Great thread,
All who are interested in the KX series Elecraft gear should subscribe
to the elecraft...@groups.io group where KX series gear is discussed
exclusively. When Wayne isn't debugging K4 firmware he also often posts
there!
Cheers & 73,
Howie / WA4PSC
Nice analysis. For Eneloop Pro batteries, with 2550 mAh capacity,
that would be 21% of capacity for the clock plus 15% for self-discharge.
Of course, whenever the KX3 is connected to “shore power”, that is
used instead of the battery.
wunder
K6WRU
Walter Underwood
CM87wj
I opened my KX3 and measured the current draw on my internal Eneloop
batteries while the radio is off. That current is 60 microamps. At that
rate, my 2000mAh batteries will completely drain in roughly 3 years, 9
months.
Looking at it from a different angle: After 1 year, a fully charged set
I dunno about smoke detector batts, BUT--in my extensive tests with
rechargeable v. non-rechargeable CR123A batts for Arlo cameras, the
non-rechargeable ones last twice as long. I hate to generate the excess
waste, but hauling my degraded carcass up a ladder twice as often while
alone and afraid
You’re supposed to replace the smoke detectors every 10 years because they lose
sensitivity. In my experience, 9v alkalines in the AC powered models last
nearly that long. I assume it’s just the shelf life of the battery.
73
Josh W6XU
Sent from my mobile device
> On Oct 5, 2021, at 1:22 PM,
Get regular 9v batteries and change them when you set your clocks to/from
daylight savings time
On Tue, Oct 5, 2021 at 16:07 Julia Tuttle wrote:
> I'm using Energizer Ultimate Lithium batteries in my smoke detectors and so
> far they seem to last a long time.
>
> One risk is that their
I'm using Energizer Ultimate Lithium batteries in my smoke detectors and so
far they seem to last a long time.
One risk is that their discharge curve is higher and flatter than alkaline
and then drops precipitously at the end of their lifetime. Fortunately
yours are hard-wired, so they should
I have a related questions about batteries discharging... Not really
about ham radio, all please feel free
to delete...
We have a *lot* of smoke detectors. They are the kind that runs off
the AC, but each one has a backup
battery. The other day, one started beeping...and beeping...and
ft
> Sent: Tue, Oct 5, 2021 12:25 am
> Subject: Re: [Elecraft] KXBC3 charger question
>
> Docs call for Nickel Metal Hydride batteries, not Nickel Cadmium. I don't
> think the internal charger is designed for NICAD batteries. Unless you're
> using a separate charger?
>
> 73,
&
Eddy,
The most likely answer is that your batteries are self discharging.
NiMH batteries will do that, although there are low self discharge
batteries available that you should look into.
73,
Don W3FPR
On 10/4/2021 11:14 PM, Eddy - k6sdw wrote:
I have a KX3 with the KXBC3 Nimh charger
From the instructions:
"Only a few microamperes of current are required to keep the clock running when
the KX3 is off. This is supplied by either the external power supply or the
internal batteries.”
Docs call for Nickel Metal Hydride batteries, not Nickel Cadmium. I don't
think the internal charger is designed for NICAD batteries. Unless you're
using a separate charger?
73,
Gwen, NG3P
On Mon, Oct 4, 2021, 11:16 PM Eddy - k6sdw wrote:
> I have a KX3 with the KXBC3 Nimh charger and Nimh
I have a KX3 with the KXBC3 Nimh charger and Nimh batteries installed. My
question is: What's the current drain on the NICADS when I store the KX3
for long periods of time? The KX3 is primarily used for portable operation
and when I put the KX3 on the bench the batteries are dead needing
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